package com.sky.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.List;

@Service
public class EmployeeServiceImpl extends ServiceImpl<EmployeeMapper,Employee> implements EmployeeService{

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {

        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        String s = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!s.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public PageResult List(EmployeePageQueryDTO employeePageQueryDTO) {
        int page = employeePageQueryDTO.getPage();
        int pageSize = employeePageQueryDTO.getPageSize();
        PageHelper.startPage(page,pageSize);
        Page<Employee> employeeList = employeeMapper.selectAll(employeePageQueryDTO);
        PageResult pageResult = new PageResult();
        pageResult.setTotal(employeeList.getTotal());
        pageResult.setRecords(employeeList.getResult());
        return pageResult;
    }

    @Override
    public void updateAll(Employee employee) {
        LambdaUpdateWrapper<Employee> employeeLambdaUpdateWrapper = new LambdaUpdateWrapper<>();
        employeeLambdaUpdateWrapper.set(employee.getStatus()!=null,Employee::getStatus,employee.getStatus())
                .set(employee.getUpdateTime()!=null,Employee::getUpdateTime,employee.getUpdateTime())
                .set(employee.getUpdateUser()!=null,Employee::getUpdateUser,employee.getUpdateUser())
                .set(employee.getName()!=null,Employee::getName,employee.getName())
                .set(employee.getIdNumber()!=null,Employee::getIdNumber,employee.getIdNumber())
                .set(employee.getPhone()!=null,Employee::getPhone,employee.getPhone())
                .set(employee.getPassword()!=null,Employee::getPassword,employee.getPassword())
                .set(employee.getSex()!=null,Employee::getSex,employee.getSex())
                .set(employee.getUsername()!=null,Employee::getUsername,employee.getUsername())
                .eq(Employee::getId,employee.getId());
        update(employeeLambdaUpdateWrapper);
    }


}
